An article of adjustable furniture (10) comprising at least one supportsection (12) and a drive mechanism (40) operableto effect pivotal movement of the at least one support section (12), the drivemechanism (40) including at least a first and a secondcomponent pivotally joined by a bearing assembly (52), such that operation ofthe drive mechanism causes pivotal movement betweenthe first and second components so as to effect pivotal movement of the atleast one support section.